Tig Welders
TUNGSTEN INERT GAS (TIG) welding, or (Gas Tungsten Arc Welding) (GTAW), uses a non-consumable tungsten electrode to create the arc and a seperate filler material (rod) to feed the weld pool, as with MIG, an inert or semi inert gas is used to shield the arc and pool.
Though the process is somewhat slower than MIG welding, TIG is especially useful for welding metals usually considered difficult to weld. It is also renowned for its usefulness for welding thin materials down to a thickness of 0.4mm such as materials like stainless steel, nickel alloy and titanium.
TIG Machines are normally equipped with some of the following features:
HF Ignition is a high frequency spark (electronic impulse) created to initiate current flow between the electrode and the work piece. In DC mode the HF spark is removed once the welding current is established, but AC in mode the HF remains in place to stabilise the arc.
Lift Arc is a facility which allows for starting the arc without high frequency (HF). This is particularly useful in areas where HF could interfere with pace-makers, computers and telephones. |
